Fuse carrier



Patented Oct. 24, 1933 FUSE CARRIER Charles E. HannypUnionville, Conn., assigner toThe Trumbull Electric Manufacturing Comv pany, Plainville, Conn., a corporation of Connecticut Y Application July 16, 1932. serial Np. 622,906 1o claims. (o1. 20o-113) Ty invention relates particularly to a construction for supportingeleotrical fuses of the cartridge type. l The main object of my invention is to provide V5 for, readily prying or releasing cartridge type fuses from. the spring clips in which they are usually mounted.

.A special object of iny invention is to provide `a construction which will releasey two or more 1. l fuses of the conventional type simultaneously.

Another object is to provide a construction by which very substantial leverage power can be readily applied for forcing the fuses out of the clips. v 4

l Another object is to provide a construction which can be readily actuated either by the finger of one hand or by means of a hook or a stick.

Another object is to providea releasing device which may be readily attached to or detached from an ordinary fuse base.

In carrying out the invention I support the fuses in the usual manner by suitable spring clips and I mount on the surface of the base beneath the fuse a T-shaped insulating plate which serves as a disengaging lever when tilted, and I provide a spring which normally holds the lever in its inactive position against the upper surface of the base.

Fig. 1 is a front viewof a construction embodying one form of my invention.

Fig. 2 is a longitudinal section elevation. n

Fig. 3 is a transverse sectional view on the plane of the line 3-3 of Fig. `l.

Fig. 4 is a detail edge View of a modied form of releasing lever.

The base 5 may be made of any suitable insulating material and supports the terminals 6, 6 at its upper end and the terminals 7, 7 at its lower end. the upper circuit terminals and the fuse clips 9, 9 are. connected to the lower terminals. Cartridg type ruses l0, lil are detachably held by the spring clips in the usual manner on the surface of the base underneath the fuses is mounted an insulating plate of inverted T-shape with its head or cross piece 11 resting against the upper edges of the lower fuse clips andits stern l2 extends between .the fuses. A spring 13 is 50 anchored to the wire 14 in the back of the base and connected to an eyelet 15 in the back of the plate or lever member.

, This plate or lever member is adapted to'be tilted about its lower edge by drawing the upper end of the handle 12V outwardly. The upper al view and side Spring fuse clips 8, 8 are connected to edges of the'cross piece 11 simultaneously engage the rear faces of the fuses and force the lower ends of the fuses out of the clips 9, thus leaving the upper vends of the fuses held by the upper fuseclips in a position such that each fuse is disconnected from the circuit and vcan be readily and then `safely grasped by hand and detached from the upper fuse clips. When the handle 12 yis released the spring 13 draws it back to the position shown in section in Fig. 2. I preferably provide a groove 16 in the'base between 'the fuses and this groove may serve as a convenient guide 'for a hook or other tool ,to be inserted beneathV the upper end of `the handle l2 for releasing the lower ends of the fuses.

Il desired, the lever 12 may conveniently have an outwardly projecting handle member such as 17 to facilitate engagement and operation.

Ordinarily the fuses are not entirely released from the upper fuse clips because of the shape' and position of the releasing lever, but they may be easily and safely removed `from this position by hand. This is a convenient means for furnishing the necessary release without dropping S0 the fuses on the floor. It should be understood, however, that the lever might be reversed in relative position and so constructed as to release the upper ends of the fuses from their clips, or it may be arranged so as to force the respective fuses entirely out of the clips.

Furthermore, it should be understood that the fuses might be detachably secured to the lever member or its handle so that even though the fuses were entirely removed from their clips by means of the lever they would not fall upon the floor but would be held by the lever for subsequent removal byr hand. For convenience in illustrating and describing my invention, I have shown it as applied to a double pole cut out but obviously this method of disconnecting fuses from their respective spring clips may be applied to a single fuse or a plurality of fuses.

It will be noted that when the fuses are forced out of the clips, they are disconnected from the` line side clps'and may safely be manipulated by hand.

I claim:

l. Aiuse carrier including a base, fuse clips and circuit terminals mounted thereon, fuses mounted in said clips anda fuse releasing device mounted on the face of the base and adapted 'to be tilted about one edge to simultaneously engage and release both of said fuses from their respective clips.

2. A fuse carrier including a base, a pair of spring fuse clips mounted thereon, a fuse detachably mounted in said clips, a fuse dsengaging device tiltingly supported on the face of said base and a spring extending through the base for automatically returning the device to its normal position of rest.

3. A fuse carrier including a base, upper and lower fuse clips mounted thereon, fuses mounted in said clips, a flat release plate mounted on said base beneath said fuses and adjacent the lower clips and having a handle near the upper clips and adapted to swing alongside of the fuses about one edge as an axis at right angles to the length of the fuses for simultaneously releasing all of the fuses.

4. A fuse carrier including a base, two pairs ot upper and lower clips carried by said base, a fuse releasing plate rockably mounted on the surface of the base and adapted to swing upon aihorlzontal axis adjacent the lower clips and having a handle to swing between the pairs of 5. A fuse carrier including a base, a pair of mounted on the base, a fuse releasing lever on the surface oi the base with a crosspieoe beneath the fuse and adapted to swing upon .atransverse axis above the lower fuse clips and a spring passing through the base for normalls' `holding the lever against the base.

A fuse carrier including a base, a pair of fuse `clips mounted on the base, a fuse mounted in said clips, a T-shaped release plate loosely supported flntwise on the surface of the base so as to permit the plate to swing as a lever about its lower edge and having the upper edges of its cross piece arranged to engage beneath the lower end of the fuse to tilt one end of the fuse out of the said clips.

7. A fuse carrier including a base, fuses carried thereby, a substantially T-shaped insulating lever loosely supported on the base beneath the fuses, the base having a groove in line with the lever and a spring holding the lever in place adjacent the front surface of the base.Y

8. A fuse carrier including a base, two pairs of fuse clips carried thereby, a lever supported by said base with a handle swinging between the pairs of clips, the base having a groove in line with the handle of the lever.

9. A fuse carrier including a base, fuse clips carried thereby, a lever supported by the base for releasing fuses from said clips and a spring holding the lever on the base.

10. A fuse block having two pairs of clips spaced apart in parallel relation for detachably holding fuses, an insulating release plate having a cross-piece with one of its edges resting upon edges of two of the clips and having a handle lever adapted to swing between the pairs of clips in a plane generally parallel to the length of the fuses so as to release one end of each fuse simultaneously, a helical spring having one of its ends secured to said handle lever and having an anchor at its other end behind the base, said spring serving to hold the release plate vresiliently against the surface of the base.

CHARLES E. HANNY. 

